CN114216914A

CN114216914A - Detection system

Info

Publication number: CN114216914A
Application number: CN202111467308.3A
Authority: CN
Inventors: 樊丽彬; 毕丽君; 黄际雷; 何健; 杜威; 杨德文
Original assignee: Beijing Dewei Wisdom Technology Co ltd
Current assignee: Beijing Dewei Wisdom Technology Co ltd
Priority date: 2021-12-02
Filing date: 2021-12-02
Publication date: 2022-03-22

Abstract

The invention provides a detection system. The system comprises a conveying device, a supporting device, a power supply device and a testing device. The transfer device has a test station. The supporting device is arranged on the conveying device and can be driven by the conveying piece to move to the testing station. The supporting device comprises a supporting portion used for supporting the display device to be tested, an interface used for being electrically connected with the display device to be tested and a conductive portion exposed from the bottom surface of the supporting device, and the interface is electrically connected with the conductive portion. The power supply unit abuts against the conductive portion when the supporting unit is moved to the test station. The testing device includes a camera and a processor. The camera is arranged above the testing station, and the processor is in communication connection with the camera. The system can accurately and efficiently analyze the defects on the surface of the display screen, reduces the labor intensity of workers, and simultaneously improves the quality and the accuracy of the detection of the display screen.

Description

Detection system

Technical Field

The invention relates to the field of display manufacturing, in particular to a detection system.

Background

Many electronic devices, such as televisions, computers, etc., require a display to present a picture to be displayed to a user. With the progress of science and technology and the development of times, a plurality of devices in daily life and work of people are required to be provided with a display. Accordingly, the demand for displays is also increasing.

Before the display leaves the factory, the display is usually required to be subjected to detection of appearance defects such as scratches, crush damage, point defects, bright screen early spots and the like, so that the production quality of the display is ensured. In the industry, the screen of the display is generally detected by a manual visual detection mode, so that the labor intensity of workers in the detection process is high, and the problems that the quality of a product and the detection accuracy are affected due to missed detection or false detection are easy to occur.

Disclosure of Invention

It is an object of the present invention to provide a detection system to solve the above problems in the prior art.

In order to achieve the technical purpose, the technical scheme adopted by the invention is as follows:

the invention provides a detection system, comprising:

the conveying device is provided with a testing station;

the supporting device is arranged on the conveying device and can move to a testing station under the driving of the conveying piece, the supporting device comprises a supporting part for supporting the display device to be tested, an interface for electrically connecting with the display device to be tested and a conductive part exposed from the bottom surface of the supporting device, and the interface is electrically connected with the conductive part;

the power supply device is abutted against the conductive part when the supporting device moves to the testing station;

the testing device comprises a camera and a processor, the camera is arranged above the testing station, and the processor is in communication connection with the camera.

According to one embodiment of the invention, the conveying device comprises a bracket and a conveying piece arranged on the bracket, wherein the bracket is provided with a mounting opening at a testing station;

the power supply device comprises a conductive antenna which is movably arranged in the mounting port and moves to a position abutting against the conductive part when the supporting device moves to the test station.

According to an embodiment of the present invention, the power supply device further includes:

a rotating shaft which is arranged in the mounting port and the axis of which is vertical to the transmission direction, the near end of the conductive antenna is sleeved on the rotating shaft, the far end of the conductive antenna extends away from the near end along the transmission direction,

the torsion spring is sleeved on the rotating shaft, a first torsion arm of the torsion spring abuts against the support, and a second torsion arm of the torsion spring extends obliquely upwards to the upper side of the top surface of the mounting opening along the conveying direction and is fixedly connected with the far end of the conductive antenna;

and the power supply wire is electrically connected with the conductive antenna.

In this embodiment of the invention, the conductive antenna is supported using a torsion spring. When the supporting device moves to the testing station, the supporting device is located above the conductive antenna and presses down the conductive antenna. The conductive feeler moves downwards to enable the torsion spring to generate elastic deformation, and the restoring force of the torsion spring enables the conductive feeler to move upwards, so that stable electric connection is established between the conductive feeler and the conductive part of the supporting device.

According to one embodiment of the invention, the conductive antenna comprises a main body and a roller, wherein the main body comprises a first end and a second end, the first end is sleeved on the rotating shaft, the second end extends away from the first end along the conveying direction, the second end is provided with a pivot, the axis of the pivot is parallel to the axis of the rotating shaft, the roller is pivotally arranged on the pivot, the end part of the second torsion arm is wound on the pivot, and the roller is used for being abutted against the conductive part.

According to one embodiment of the invention, the carrier comprises at least three longitudinal beams extending in the transport direction and spaced apart from each other, of which at least three longitudinal beams on both sides are provided with transport elements, the axis of which transport elements is perpendicular to the transport direction and can be rotated about the axis, and the power supply device is provided on the longitudinal beam of the at least three longitudinal beams in the middle. The conveying part is a plurality of rollers arranged side by side, the axes of the rollers are vertical to the conveying direction of the conveying device, and the rollers are in transmission connection.

According to one embodiment of the invention, the bracket may comprise five longitudinal beams. The three longitudinal beams positioned in the middle are provided with mounting openings, and each mounting opening is internally provided with a conductive antenna.

According to an embodiment of the invention, the conveyor further comprises two baffles arranged at two outer edges of the frame parallel to the conveying direction, the support means further comprises a plurality of pulleys located at each corner, the axis of the pulleys being perpendicular to the bottom surface of the support means.

According to one embodiment of the invention, the system further comprises a first position sensor and a controller, the controller is in communication connection with the first position sensor and the camera, the first position sensor is used for collecting information at the test station in real time and sending the collected data to the controller, the controller determines whether the supporting device arrives at the test station based on the data collected by the first position sensor, and controls the camera to take pictures based on the determined result. Optionally, the controller is also in communicative connection with the conveyor, the controller controlling the conveying motion of the conveyor based on the determined whether the support reaches the test station. Whether the display device to be tested is conveyed to the testing station or not is automatically detected by adopting the position sensor and the controller, so that the labor intensity of workers can be further reduced, and the supporting device can be ensured to automatically stop at a position which can be electrically connected with the power supply device.

According to one embodiment of the invention, the system further comprises a closure box comprising a plurality of light-tight walls and enclosing the test stations, the transport device extending through the closure box and the closure box being provided with an opening allowing the movement of the support device into the closure box, the camera being mounted within the closure box. The closed box is adopted to form a darkroom environment, so that the definition of the camera for shooting the screen of the display can be further improved.

According to one embodiment of the invention, the system further comprises a dust box provided in front of the enclosure box and having an opening allowing the support device to move through the dust box, the conveyor device extending through the dust box, the dust box having an ion wind generator provided therein. Optionally, the system further comprises a second position sensor and a controller, the second position sensor and the ion wind generator are both in communication connection with the controller, the second position sensor is arranged in the dust box and is used for collecting information in the dust box in real time, the controller determines whether the supporting device arrives in the dust box based on data collected by the second position sensor, and controls the operation of the ion wind generator based on the determined result. When the controller determines that the supporting device enters the dust removing box, the controller controls the ion wind generator to be started, and when the controller determines that the supporting device does not enter the dust removing box, the controller controls the ion wind generator to be in a closed state. In a preferred embodiment, the ion wind generator generates an ion wind parallel to the screen of the display. The dust removal box is arranged in front of the sealing box, so that dust left on the surface of the display can be effectively prevented from influencing the analysis effect of the processor.

According to one embodiment of the invention, the detection system further comprises a power supply and a switch. The power source is electrically connected to the conductive member, and the switch is disposed between the power source and the conductive member. When the controller determines that the support device has not reached the test station, the controller controls the switch to be in the open state, thereby breaking the electrical connection between the conductive member and the power source. And when the controller determines that the supporting device reaches the test station, the controller controls the switch to be closed.

Due to the adoption of the technical scheme, the invention at least has the following beneficial effects:

the invention adopts the camera to shoot the screen surface of the display and adopts the processor to automatically analyze the acquired picture, thereby more accurately and efficiently analyzing the defects on the screen surface of the display, reducing the labor intensity of workers and simultaneously improving the detection quality and the detection accuracy of the display screen. In addition, the detection system provided by the invention is provided with the power supply structure which is matched with the support device and the test station, and the structure can realize automatic power supply under the transmission condition, so that more test requirements are met.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:

fig. 1 is a schematic view of the overall structure of a detection system according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view of the detection system shown in FIG. 1.

FIG. 3 is a schematic view of a partial structure of the detection system shown in FIG. 1, with the enclosure box and the dust removal box removed.

Fig. 4 is a schematic structural view of a supporting device according to an embodiment of the present invention.

Fig. 5 is a schematic diagram of a power supply apparatus according to an embodiment of the present invention.

Fig. 6 is a communication structure diagram of a detection system according to an embodiment of the present invention.

Description of the reference numerals

100 conveying device, 110 bracket, 120 conveying member, drive 130, 200 supporting device, 210 interface, 220 conductive part, 230 pulley, 300 power supply device, 310 conductive antenna, 311 main body, 312 roller, 320 power supply line, 330 rotating shaft, 340 torsional spring, 350 switch, 400 testing device, 410 camera, 500 first position sensor, 600 controller, 700 closed box, 800 dust removing box, 810 ion wind generator and 900 second position sensor.

Detailed Description

The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs; the terminology used in the description presented herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention, e.g., the terms "length," "width," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," "outer," etc., refer to an orientation or position based on that shown in the drawings, are for convenience of description only and are not to be construed as limiting of the present disclosure.

The terms "including" and "having," and any variations thereof, in the description and claims of this invention and the description of the above figures are intended to cover non-exclusive inclusions; the terms "first," "second," and the like in the description and in the claims, or in the drawings, are used for distinguishing between different objects and not necessarily for describing a particular sequential order. The meaning of "plurality" is two or more unless specifically limited otherwise.

In the description and claims of the present invention and in the description of the above figures, when an element is referred to as being "fixed" or "mounted" or "disposed" or "connected" to another element, it may be directly or indirectly located on the other element. For example, when an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element.

Furthermore, reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the invention. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

Fig. 1-3 illustrate exemplary configurations of detection systems provided by the present invention. Fig. 1 is a schematic view of the overall structure of a detection system according to an embodiment of the present invention. FIG. 2 is a cross-sectional view of the detection system shown in FIG. 1. Fig. 3 is a schematic view of a partial structure of the detection system shown in fig. 1, in which the closure cartridge 700 and the dust removal cartridge 800 have been removed. As shown, the detecting system mainly includes a conveying device 100, a supporting device 200, a power supply device 300 and a testing device 400.

The conveyor 100 is provided with a test station where the display is tested. The transfer device 100 generally includes a support 110, a transfer member 120, and a drive 130. The support 110 includes two vertical supports extending vertically and spaced apart and a horizontal support extending horizontally between the two vertical supports. In the embodiment shown in fig. 1-3, the vertical supports are risers and the horizontal supports are stringers. In the figure 5 stringers are provided. The first and second beams on both sides are provided with open-topped channels. A plurality of conveyors 120 are arranged side by side and rotatably in the respective channels of the first and second beams. Specifically, the conveying member 120 may employ a roller having an axis perpendicular to the conveying direction. The two ends of each roller are provided with protruding shafts which can be rotatably arranged on the groove walls of the first beam and the second beam through bearings. A protruding shaft at one end of each transfer member 120, at the end of which a gear is mounted, extends to the outside of the groove wall. The chain is sleeved on the gear of each roller and also sleeved on the output end of the driver 130 (such as a motor), so that the rotation of the driver 130 drives each roller to rotate, so as to drive the supporting device 200 placed on the conveying member 120 to move along a predetermined direction (as shown by an arrow in fig. 1). There are also 3 stringers between the first and second beams, which 3 stringers can be used to mount a power supply 300 (described in detail below).

In some embodiments, to ensure that the support device 200 is transported in the set direction, the outer edges of the first and second longitudinal beams (i.e. the edges of the longitudinal beams located centrally away from the bracket 110) are each further provided with a baffle extending in the transport direction.

Referring to fig. 2 and 3, at the test station (i.e. the area enclosed by the closure box 700), the central 3 stringers are each provided with an opening. The power supply device 300 is installed in the opening. The power supply device 300 has a portion protruding above the top face of the side member and the protruding portion is supported by the elastic support.

Fig. 4 shows a schematic structural view of the supporting device 200 according to an embodiment of the present invention, which shows a top surface (upper left view), a bottom surface (upper right view), and a partially enlarged view (lower view) of the supporting device 200. The supporting device 200 is used for supporting the display device to be tested and providing a connecting structure for the display to electrically communicate with the power supply device 300. The supporting device 200 is placed on the conveyor 120 of the conveyor 100 and moved in the conveying direction indicated by the arrow in fig. 1 by the rolling action of the conveyor 120. The support device 200 is generally square and includes a first surface for supporting a display device under test. An interface 210 electrically connected to the display device to be tested is disposed on the first surface. Interface 210 may be a socket or other type of power interface for use with a plug of a display. An exposed conductive portion 220 is provided on the bottom surface of the supporting device 200. The conductive part 220 may include 3 conductive elements, and the conductive elements may be, for example, a conductive copper sheet combined on the bottom surface of the supporting device 200 or a conductive trace coated on the surface, and the copper sheet may extend a predetermined length to increase the area of the connection region. The conductive part 220 and the interface 210 are connected by an electrical connector such as an electric wire inside the supporting device 200. Alternatively, in order to be able to stably hold the display during movement, the upper part of the support device may be provided with a holding structure. The retaining structure may be a groove recessed from the top of the support device, the shape and size of the groove matching the dimensions of the display to securely hold the display on the support device. The holding structure may also be a suction cup provided on the top surface of the support means, the suction cup creating a suction effect on the bottom surface of the display to ensure that the display is securely held on the support platform.

In some embodiments, the support device 200 may be skewed relative to the cross-beam of the frame 110 due to a possible roll misalignment of the rollers of the conveyor 100. When such deflection occurs, the conductive portion 220 (e.g., conductive copper sheet) of the supporting device 200 may be transformed from a state parallel to the beam of the cradle 110 to a non-parallel state. This makes it possible for the supporting device 200 to be deviated from the corresponding power supply part when moving to the test station and thus to fail to establish an effective electrical connection with the power supply device 300. To automatically correct such deflection, pulleys 230 may be provided at the four corners of the support device 200. As shown in the partially enlarged view of fig. 4, the corner of the supporting device 200 is cut away, and upper and lower fixing plates are provided at the corner, and the pulley 230 is sandwiched between the two fixing plates and has its axis perpendicular to the bottom surface of the supporting device 200. When the supporting device 200 is deflected during the transportation, the pulleys 230 contact and rub against the blocking plates on both sides of the bracket 110, and the supporting device 200 is readjusted to a state where the conductive part 220 is parallel to the beam by the friction.

Referring to fig. 3 and 5, a power supply device 300 is disposed at the test station and connected to a power supply for supplying power to the display device under test moved to the test station. The power supply device 300 generally includes 3 power supply parts, and the 3 power supply parts are respectively disposed on the three middle beams of the stand 110 and respectively connected with the 3 conductive members of the support device 200. Each power supply member may include an electrically conductive antenna 310, the electrically conductive antenna 310 being connected to a power supply line 320 of the power supply. When the support device 200 has not been transferred to the test station, the conductive antenna 310 is in the first position, and when the support device 200 is transferred to the test station, the conductive antenna 310 moves to the second position in abutment with the exposed conductive portion 220.

For example, in some embodiments, the conductive antenna 310 may be mounted on a lifter that is movable up and down. The lifter is driven by the controller 600 to move up and down. The conductive antenna 310 is in a lower position when the support device 200 has not been transferred to the test station. When the supporting device 200 is transferred to the testing station, the controller 600 sends a signal to the lifter to drive the lifter to move upward, and the lifter drives the conductive antenna 310 mounted thereon to move upward and make the conductive antenna 310 abut against the exposed conductive part 220, so that the electrical connection between the display device to be tested and the power supply is established and the display screen is lighted.

In other embodiments, the movement of the conductive antenna 310 may be controlled in a spring-loaded manner. As shown in fig. 2, an opening may be provided on the center beam of the bracket 110, and the conductive antenna 310 is mounted in the opening. In this embodiment, each power supply part may include a rotation shaft 330, a torsion spring 340, a conductive antenna 310, and a power supply line 320.

The rotating shaft 330 may be installed in an opening of the center sill with its axis perpendicular to the conveying direction. The torsion spring 340 is sleeved on the rotating shaft 330. The end of the first torsion arm of the torsion spring 340 abuts against the bracket 110. The second torsion arm of the torsion spring 340 extends obliquely upward from the rotating shaft 330 in the conveying direction and the end of the second torsion arm is fixedly connected with the distal end of the conductive antenna 310. The conductive antenna 310 may include a main body 311 and a wheel 312. The body 311 is generally cantilevered. The main body 310 includes a first end sleeved on the rotating shaft 330 and a second end extending away from the first end along the conveying direction. The second end of the main body 310 is provided with a pivot, the axis of which is parallel to the axis of the rotating shaft. The roller 312 is rotatably disposed on the pivot. The end of the second torsion arm of the torsion spring 340 is wound onto the pivot and outside the roller 312, which causes the main body of the conductive antenna 310 to also extend diagonally upward in the conveying direction. The top of the roller 312 is higher than the top of the second end of the body 310 and the upper surface of the intermediate beam, whereby the roller 312 serves as a structure for interfacing with the conductive part 220. Using the roller 312 as a component that abuts the conductive portion 220 of the support apparatus 200 may reduce friction between the conductive antenna 310 and the conductive portion 220. The supply line 320 is electrically connected to a first end of the conductive antenna 310.

In this embodiment, the roller 312 of the conductive antenna 310 projects upward and is in a first position above the top surface of the center sill when the support apparatus 200 has not been conveyed to the test station. As the support device 200 is transported to the test station, the upwardly protruding roller 312 is pressed down by the bottom of the support device 200, and when the support device 200 stops at the test station, the conductive portion 220 stops above the roller 312 and the two abut against each other, thereby establishing an electrical connection between the display device under test and the power source and causing the display screen to be lit. Since the conductive antenna 310 is supported by the torsion spring 340, the conductive antenna 310 moves downward under the pressure of the supporting device 200 to elastically deform the torsion spring 340, and the restoring force of the torsion spring 340 causes the conductive antenna 310 to move upward, so that the conductive antenna 310 and the conductive part 220 of the supporting device 200 establish a stable electrical connection.

In other embodiments, other resilient members may be used to support the conductive antenna 310 to allow it to automatically reciprocate between the first and second positions. The conductive antenna 310 may be elastically supported using, for example, a coil spring or a leaf spring. Optionally, a switch 350 may also be provided in the circuit connecting the conductive antenna 310 to the power source. When the switch 350 is opened, the electrical connection between the conductive antenna 310 and the external power source is broken. When the switch 350 is closed, the electrical connection between the conductive antenna 310 and the external power source is completed.

Referring to fig. 2, the test apparatus 400 includes a camera 410 and a processor (not shown). A camera 410 is provided at the test station and a processor is communicatively coupled to the camera 410. The invention adopts the camera 410 to shoot the screen surface of the display and adopts the processor to analyze the collected pictures, thereby more accurately and efficiently analyzing the defects on the screen surface of the display, reducing the labor intensity of workers and simultaneously improving the quality and the accuracy of the detection of the screen of the display.

When the detection system of the above embodiment is used, the display device to be detected is placed on the supporting device 200, and the plug of the display device is plugged into the interface 210 of the supporting device 200. The support device 200 is then placed on the conveyor 120 of the conveyor 100. The drive 130 of the conveyor 100 is activated so that the conveyor 100 can displace the support device 200 towards the test station. The drive 130 is deactivated when the support device 200 is moved to the test station. At this time, the conductive antenna 310 of the power supply device 300 abuts on the conductive portion 220 of the support device 200, the switch 350 is closed, and the display is in the energized state, so that the display screen is in the lit state. At this time, the control camera 410 photographs the screen surface of the display, and transmits the photographed picture to the processor. The processor analyzes the picture, and then whether the display screen has appearance defects such as scratches, crush damage, point defects, bright screen early spots and the like can be detected.

It should be noted that, in order to further improve the testing effect of the testing device, a signal source interface and a signal generator are further arranged on the supporting device, and the signal generator is in communication connection with the signal source interface. The signal generator can generate a signal and send the signal to the signal source interface.

And when the display device to be tested is placed on the supporting device, the signal generator is in communication connection with the signal source interface of the display. The signal generator generates a signal which can enable the display to sequentially display red, green, blue, black and white pictures (and each color can be a gray scale picture of 0-255), at the moment, the camera device is controlled to shoot the pictures of each color of the display, and then the pictures are transmitted to the processor to be processed, so that the display can be detected more accurately, and the detection precision of the detection system is improved.

The signal source interface can be a digital signal interface or an analog signal interface, and is specifically selected according to actual conditions as long as the signal source interface can be in signal connection with the display device to be tested.

When the display device to be tested is a display, the signal source interface is an HDMI interface, a DP interface, a DVI interface or a VGA interface.

When the display device to be tested is a liquid crystal display, the signal source interface can be an LVDS interface, an eDP interface or a V-bye interface.

In some embodiments, as shown in FIG. 2, the detection system of the present invention further comprises a first position sensor 500 and a controller 600. The first position sensor 500 is disposed at the test station and is used for detecting whether the supporting device 200 reaches the test station in real time. For example, the first position sensor 500 may be provided on a wall of the enclosure 700 or on a center sill. The first position sensor 500 may employ an infrared sensor, a proximity sensor, or the like. The first position sensor 500 provides an output signal to the controller 600 when it detects the support device 200. The controller 600 is communicatively coupled to the testing device 400, the first position sensor 500, and the transmitting device 100. The controller 600 determines whether the supporting device 200 arrives at the test station based on the detection data of the first position sensor 500. When it is determined that the supporting device 200 reaches the test station, the controller 600 sends a stop signal to the transfer device 100 to stop the rotation of the transfer member 120 of the transfer device 100. The controller 600 also sends a signal to the camera of the test apparatus 400 to take a picture of the camera 410. The camera 410 sends the pictures taken to the processor. The processor analyzes the collected pictures to determine whether the appearance defects such as scratches, crush injuries, point defects, bright screen early spots and the like exist. Alternatively, the processor of the test device 400 may be included within the controller 600 or share the same processor with the controller 600. Whether the display device to be tested is conveyed to the test station or not is automatically detected by adopting the first position sensor 500 and the controller 600, so that the labor intensity of workers can be further reduced, and the supporting device 200 can be ensured to be automatically stopped at a position where the supporting device can be electrically connected with the power supply device 300.

In some embodiments, the detection system of the present invention further comprises a closure 700. The enclosure 700 includes a plurality of light-tight walls and encloses the test station. The 5 stringers of the transfer device 100 extend through the closure 700. An opening is provided in the front wall of the enclosure 700 to allow the support device 200 to be moved into the enclosure 700. The camera 410 is mounted within the enclosure 700, for example the camera may be mounted on a side wall or top wall of the enclosure 700 such that the camera is located above the test station. The enclosure 700 is used to create a dark room environment that further improves the clarity of the camera 410 when it is capturing the display screen.

In some embodiments, the detection system of the present invention further comprises a dust removal cartridge 800. The dust box 800 is provided in front of the closure box 700 in the conveying direction and has an opening that allows the support device 200 to move through the dust box 800. The 5 stringers of the conveyor 100 extend through the dusting box 800. An ion wind generator 810 is provided in the dust box 800, and an ion wind generated by the ion wind generator 810 is parallel to a screen of the display, so that dust on the surface of the screen can be removed using the ion wind. The dust removal box 800 is arranged in front of the sealing box 700, so that dust left on the surface of the display can be effectively prevented from affecting the analysis effect of the processor. Optionally, a second position sensor 900 is provided within the enclosed area of the dust box 800. The second position sensor 900 is used to sense whether the supporting device 200 enters into the dust box 800. The second position sensor 900 may be disposed on a wall of the dust box 800 or on a center sill.

When the detection system of the present embodiment is used, the display device to be detected is first placed on the supporting device 200, and the plug of the display device is plugged into the interface 210 of the supporting device 200. The support device 200 is then placed on the conveyor 120 of the conveyor 100, wherein the support device 200 is placed such that the conductive portion 220 of the support device 200 is generally parallel to the central beam. The drive 130 of the conveyor 100 is activated so that the conveyor 100 can displace the support device 200 towards the test station. When the supporting device 200 moves into the dust box 800, the second position sensor 900 sends a signal to the controller 600. The controller 600 controls the ion wind generator 810 to be activated after receiving the signal from the second position sensor 900. Dust on the screen surface of the display is removed by the ion wind generated by the ion wind generator. The support device 200 then enters the enclosure 700. The first position sensor 500 is triggered to send a signal to the controller 600 when the support device 200 moves to the test station. The controller 600 then sends a stop signal to the conveyor 100 to stop the rotation of the conveyor 120 of the conveyor 100. At this time, the conductive antenna 310 of the power supply device 300 abuts against the conductive part 220 of the support device 200. The controller 600 controls the switch 350 to close and the display is in a powered state such that the display screen is in a lit state. At this time, the controller 600 controls the camera 410 to photograph the screen surface of the display and transmits the photographed picture to the processor. The processor analyzes the picture, and then whether the display screen has appearance defects such as scratches, crush damage, point defects, bright screen early spots and the like can be detected.

The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various combinations that are possible in the present disclosure are not described again.

In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.

Claims

1. A detection system, comprising:

a conveyor having a test station;

the supporting device is arranged on the conveying device and can move to the testing station under the driving of the conveying device, the supporting device comprises a supporting part for supporting the display device to be tested, an interface for electrically connecting with the display device to be tested and a conductive part exposed from the bottom surface of the supporting device, and the interface is electrically connected with the conductive part;

a power supply device abutting against the conductive portion when the support device is moved to the test station;

2. The inspection system of claim 1, wherein the conveyor includes a frame and a conveyor disposed on the frame, the frame having a mounting opening at the test station;

the power supply device comprises a conductive antenna which is movably arranged in the mounting opening and moves to a position abutting against the conductive part when the supporting device moves to the test station.

3. The detection system of claim 2, wherein the power supply further comprises:

the rotating shaft is arranged in the mounting port, the axis of the rotating shaft is vertical to the transmission direction, the near end of the conductive antenna is sleeved on the rotating shaft, the far end of the conductive antenna extends away from the near end along the transmission direction,

the torsion spring is sleeved on the rotating shaft, a first torsion arm of the torsion spring abuts against the support, and a second torsion arm of the torsion spring extends obliquely upwards to the upper side of the top surface of the mounting opening along the transmission direction and is fixedly connected with the far end of the conductive antenna;

a power supply line electrically connected with the conductive antenna.

4. The detecting system of claim 3, wherein the conductive antenna comprises a main body and a roller, the main body comprises a first end sleeved on the rotating shaft and a second end extending away from the first end along the conveying direction, the second end is provided with a pivot, an axis of the pivot is parallel to an axis of the rotating shaft, the roller is pivotally mounted on the pivot, an end of the second torsion arm is wound on the pivot, and the roller is used for abutting against the conductive portion.

5. The inspection system of claim 2, wherein said conveyor further comprises two baffles disposed at two outer edges of said frame parallel to the direction of conveyance, said support further comprising a plurality of pulleys at each corner, the axes of said pulleys being perpendicular to said bottom surface of said support.

6. The inspection system of claim 1, further comprising a first position sensor and a controller, the controller being communicatively coupled to the first position sensor and the camera, the first position sensor being configured to collect information at the test station in real time and to send the collected data to the controller, the controller determining whether the support device has reached the test station based on the data collected by the first position sensor and controlling the camera to take a photograph based on the determination.

7. The inspection system of claim 6, wherein the controller is further communicatively coupled to the conveyor, the controller controlling the conveying motion of the conveyor based on the determined arrival of the support at the test station.

8. A testing system according to claim 1, further comprising a closure including a plurality of light-tight walls and enclosing the test stations, the conveyor extending through the closure and the closure being provided with an opening to allow movement of the support means into the closure, the camera being mounted within the closure.

9. The detection system of claim 8, further comprising a dust removal box disposed in front of the enclosure box and having an opening to allow the support device to move through the dust removal box, the conveyor device extending through the dust removal box, the dust removal box having an ion wind generator disposed therein.

10. The detection system of claim 9, further comprising a second position sensor and a controller, both the second position sensor and the ion wind generator being in communication with the controller, the second position sensor being disposed within the dust box and being configured to collect information within the dust box in real time, the controller determining whether the support device has arrived within the dust box based on data collected by the second position sensor and controlling operation of the ion wind generator based on the determination.